#include <iostream>
using namespace std;

const int N = 1010;

typedef long long LL;

int n,m,q;

LL a[N][N];

int main(){
    cin >> n >> m >> q;
    
    for(int i = 1;i <= n;i++){
        for(int j = 1;j <= m;j++){
            int x;
            cin >> x;
            a[i][j] = a[i][j - 1] + a[i - 1][j] - a[i - 1][j - 1] + x;
        }
    }
    
    while(q--){
        int x1,y1,x2,y2;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << a[x2][y2] - a[x2][y1 - 1] - a[x1 - 1][y2] + a[x1 - 1][y1 - 1] << endl;
    }
    
    return 0;
}
